文章來(lai)源(yuan)：中國石油天然氣集團公司(si) 發布時間：2016-01-27
1月25日，由中國地質科學院礦產資源研究所與中石油青海油田合作鉆探的柴達木盆地第一口氣鉀預探井——氣鉀1井有兩項鉆井技術獲得重大突破，打破了柴達木盆地氣鉀勘探鉆井的技術瓶頸。
氣鉀(jia)1井(jing)(jing)(jing)(jing)位于柴達(da)木盆地(di)(di)三湖地(di)(di)區北斜(xie)坡鹽湖構造(zao)(zao)(zao)，完鉆(zhan)(zhan)井(jing)(jing)(jing)(jing)深3500米(mi)。在氣鉀(jia)1井(jing)(jing)(jing)(jing)鉆(zhan)(zhan)井(jing)(jing)(jing)(jing)過程中，針對第四(si)系未成巖地(di)(di)層(ceng)異常(chang)松散、PVC襯管(guan)保型取(qu)(qu)(qu)芯(xin)單趟進尺少及長(chang)(chang)(chang)(chang)井(jing)(jing)(jing)(jing)段(duan)(duan)封固(gu)(gu)(gu)(gu)固(gu)(gu)(gu)(gu)井(jing)(jing)(jing)(jing)質量(liang)難(nan)以保證的(de)技術(shu)難(nan)題，青海(hai)油田與(yu)承鉆(zhan)(zhan)單位一起，通過現場實(shi)踐，研究改(gai)造(zao)(zao)(zao)發明(ming)了(le)新式取(qu)(qu)(qu)芯(xin)工(gong)(gong)具，平均單筒取(qu)(qu)(qu)芯(xin)進尺達(da)到10米(mi)以上，既保證了(le)取(qu)(qu)(qu)芯(xin)收(shou)獲率，又(you)減(jian)少了(le)起下鉆(zhan)(zhan)次數和(he)時間(jian)，創(chuang)造(zao)(zao)(zao)了(le)柴達(da)木盆地(di)(di)取(qu)(qu)(qu)芯(xin)井(jing)(jing)(jing)(jing)段(duan)(duan)最長(chang)(chang)(chang)(chang)、次數最多，松散地(di)(di)層(ceng)取(qu)(qu)(qu)芯(xin)收(shou)獲率最高的(de)新紀(ji)錄；研發了(le)具有混拌震動功效(xiao)、能使(shi)水泥漿在井(jing)(jing)(jing)(jing)底得(de)到二次充分(fen)攪(jiao)拌和(he)充分(fen)水化的(de)CTG固(gu)(gu)(gu)(gu)井(jing)(jing)(jing)(jing)新工(gong)(gong)具，有效(xiao)地(di)(di)解決了(le)下套(tao)管(guan)連(lian)續(xu)灌泥漿和(he)長(chang)(chang)(chang)(chang)井(jing)(jing)(jing)(jing)段(duan)(duan)封固(gu)(gu)(gu)(gu)的(de)技術(shu)瓶頸，完井(jing)(jing)(jing)(jing)套(tao)管(guan)固(gu)(gu)(gu)(gu)井(jing)(jing)(jing)(jing)封固(gu)(gu)(gu)(gu)井(jing)(jing)(jing)(jing)段(duan)(duan)長(chang)(chang)(chang)(chang)達(da)3500米(mi)，固(gu)(gu)(gu)(gu)井(jing)(jing)(jing)(jing)質量(liang)全(quan)井(jing)(jing)(jing)(jing)段(duan)(duan)優質，創(chuang)造(zao)(zao)(zao)柴達(da)木盆地(di)(di)一次性固(gu)(gu)(gu)(gu)井(jing)(jing)(jing)(jing)封固(gu)(gu)(gu)(gu)井(jing)(jing)(jing)(jing)段(duan)(duan)最長(chang)(chang)(chang)(chang)的(de)新紀(ji)錄。